Jack



L. MAHINSKY.

JACK.

APPLICATION FILED Nov. 29, 1919.

m Patented Deo. 28, 1920.

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LOUIS MARINSKY, 0F NEW YORK, N. Y., ASSIGNOR OF ONE-HALF TO JOSEPH E. BAER, OF NEW YORK, N. Y.

JACK.

Specification of Letters Patent.

Patented Dec. 28,1929.

Application led November 29, 1919. Serial No. 341,401.

To all whom it may concern.

Be it known that I, LOUIS MARINSKY, a

citizen of Russia, and residing at New York, in the county of Bronx and State of New York, have invented cert-ain new and useful Improvements in Jacks, of which the fol-- lowing is a specification, such as will enable those skilled in the art to which it appertains to make and use the same.

\ This invention relates to jacks and par* ticularly to apparatus of this class designed for use in connection with motor vehicles, and the object of the invention is to provide an apparatus of the class specified which is operated by a mechanical mechanism actuated by the suction a'nd compression of the engine, or one or more of the cylinders of the engine of the vehicle in connection with which my improved apparatus is used; and with this and other objects in view the invention consists in an apparatus of the class and for the purpose specified which isA simple in construction and operation and efficient in use.

The invention is fully disclosed in the following specification, of which the accompanying drawing forms a part, in which the separate parts of my improvement are designated by suitable reference characters in each of the views, and in which Figure 1 is a side view of my improved jack with part of the constructionI broken away and in section, and illustrating diagramn'iatically its connection with a cylinder or cylinders of an engine;

Fig. 2 a partial section on the line 2-2 of Fig. 1;

Fig. 3 a plan view of the construction as shown in Fig. 1; and,

Fig. 4 a partial section on the line 4-4 of Fig. 3.

In the drawing T. have shown a main frame 5 comprising a base 6 of the general form shown in plan in Fig. 3. At one side of the base is a vertically arranged tubular standard 7 having projecting lugs 8 and 9 which form bearings for shafts 10 and 11.

Mounted in and vertically movable in the tubular standard is a threaded shaft 12 keyed against rotation in the standard 7 by a slot 13 in said standard and a pin 14 in the shaft operating in said slot. The top of the shaft 12 is provided with an enlarged head 15 secured thereto, or forming a part thereof. rlhe top face of said head is concave in form as shown at 16. l

Rotatably mounted on the shaft 12 above the standard 7 is a beveled gear 17 which rests upon a suitable bearing 18 on the top of the standard 7. A gear device 19 is rotatably mounted on the shaft 10 and is provided with a beveled gear 20, which meshes with the beveled gear 17, and the gear device 19 is also provided with a large gear 21.

Another gear device 22 is rotatably mounted on the shaft 11 and provided with a. pinion 23 which meshes with the gear 21 and with a large ratchet wheel 24. Rotatably mounted on the shaft 11 outwardly of the gear device 22 is a bell crank 25, one arm 26 of which is provided in its free end with an elongated aperture 27 and the other arm 2S thereof carries a pivoted pawl 29 at its free end. The pawl 29 operates in connection with the ratchet wheel 24 in two positions, either that shown in full lines in Fig. 1, or that indicated in dotted lines in said ligure.

At the other side of the base 6 of the jack is an upwardly directed cylindrical member 30 provided with an elongated aperture 31 through which a pin 32 passes, and in which said pin operates. One end portion of the pin 32 projects as shown at 33 in Fig. 3 and passes through and operates in the elongated aperture 27 in the end of the arm 26 of the bell crank 25, as clearly shown in Figs. 1 and 3.

A tubular and thimbleshaped piston 34 is movably mounted on and incloses the cylindrical member 30, the pin 33 passing through said piston, as will be apparent, and by means of this construction and the bell crank 25 the piston is moved vertically on the member 30. The cylindrical member 30 is provided with a port or passage 35 which opens out through the base thereof, as shown at 3G, and a pipe 37 is connected with the member 30 to form a communication with the port or passage 35, as clearly shown in Fig. 4, said pipe being provided outwardlyr of the member 30 with a suitable valve 38 with which a flexible or other tubing 39 is also connected. The tubing 39, or 'the free end thereof, is connected with a suitable coupling 4Q connected with a cylinder 41 of an engine, as is diagrammatically illustrated in Fig. 1. The coupling 40 is substituted for the spark plug .of the cylinder 41 thus preventing the irlng or eX loding of the compressed mixture within vsald cylinder and forming a pump thereof.

.chamber 43 is formed between the top of the member 30 and the head 44 of the piston 34. A fibrous ring 45 is preferably secured to the top of the member 30 to form a seal for the piston in its movement over the member 30 in the manner of a pump. I also preferably place in the chamber 43 a spiral spring 46, which aids in raising the piston 34 on the member 3() in the operation of the device.

The operation of my improved jack will be readily understood from the foregoing description when taken in connection with the accompanying drawing and the following statement. The position of the parts shown in Figs. 1, 2 and 3 is their normal positions,

in which the piston 34 is raised to its fullest extent on the member 30 and with the pawl 29 in the position shown in full lines. If the valve 38 be opened and the engine of the vehicle put in operation, the shaft 12 of the jack will be gradually raised by the'suction and compression in the cylinder 41.

In removing the spark plug, as hereinbefore stated, and substituting the coupling 40 therefor, the action of the piston within the cylinder 41 will be similar to that of the piston of a pump, and on the firing stroke of the piston when both the intake and the exhaust valves are closed the suction created by the downward movement of the piston in the cylinder 41 will move the piston 34 of the jack apparatus downwardly, while on the usual compression stroke of the piston in the cylinder 41', and when both the intake and exhaust valves are closed the piston 34 will be moved upwardly. On the intake and exhaust strokes of the piston within the cylinder 4l, the piston 34 of the jack apparatus will remainstationary, or apparently so.

From the foregoing it will be apparent that I do not move the piston 34 downwardly on the usual suction stroke in the cylinder 41. y As above described, on the firing stroke of the piston within the cylinder 41, the suction created will move the piston 34 downwardly over the member 30 against the tension of the spring 46. This operation oscillates the bell crank 25 on the shaft 11 and correpondingly rotates the ratchet'wheel 24 by e engagement of the pawl 29 therewith.`

The rotary movement of the ratchet wheel 24 is transmitted to the beveled gear 17 through the pinion 23, the gear 21 and beveled gear 20, and the shaft 12 is thus raised to a sllght extent. The compression stroke of the piston within the cylinder 41 and the spring 46 moves the piston 34 upwardly thus returnmg the bell lcrank 25 and pawl 29 to their normal positions shown in Fig. 1. As the operation of the engine continues, or upon the repeated suction and compression strokes of the piston in the cylinder 41, the piston 34 is reciprocated upwardly and downwardly and the shaft 12 is gradually raised to jack the vehicle to the desired height, after which the valve 38 is closed thus shutting off communication between the cylinder 41 and the cylindrical member 30 and the jack ceasesto operate.

In lowering the jack the pawl 29 is swung into the position shown in dotted lines in Fig. 1.and the valve 38 is again opened, and the above operation of reciprocating the piston 34 is repeated but, in this operation, it will be apparent that the ratchet wheel 24 is rotated upon the upward movement of the piston 34. As will be apparent, however, due to the reduction in gearing the power required to lower the jack, or theshaft 12, will be very slight and the desired result will be readily accomplished in the manner above set out.

While I have shown and described my improved jack apparatus as operatedl through and by means of the specific piston construction and the means for actuating the same, as hereinl set out, I am not necessarily limited in this respect, nor am I necessarily limited to the specific gear arrangement herein shown and described for transmitting the reciprocating movement of the piston 34 to the shaft 12, and I am also not limited to the connection of the coupling 40 with the cyl- 100 inder where the spark plug was originally connected therewith, as this coupling may be connected with the cylinder in any desired manner, it being understood that if the spark plug is left in position the circuit 105 wire connected therewith is detached when the cylinder is used to actuate the jack, and other changes in yand modifications of the construction herein shown and described may be made, within ythe scope of the ap- 110 pended claims, Without departing from the spirit of my invention or sacrificing its advantages.

Having fully described my invention, i what I claim as new and desire to secure by 115 Letters Patent, is

. 1. A jack apparatus of the class described comprising a frame, a shaft movable vertically in said frame, means forplacing a cylinder of the motor of a vehlcle and said 120 piston in communication whereby the operation of *said motor will actuate said piston, and means Ainvolving a chain of gears for transmitting the movement of the piston to said shaft. f

2. jack apparatus of the class described comprising a frame, a shaftpmovable vertically in said frame, means for placing a cylinder ofthe motor of a vehicle and said piston in communication whereby the oper- 130 ation of said motor will actuate said piston, means involving a chain of gears for transmitting the movement of the piston to said shaft, and tensional means for moving said piston in one direction.

3. A jack apparatus of the class described comprising a frame, a shaft movable vertically in said frame, means for placing a cylinder of the motor of a vehicle and'said piston in communication whereby the operation of said motor will actuate said piston, means involving a chain of gears for transmitting the movement of the piston to said shaft, tensional means for moving said piston in one direction, and means for controlling the communication between the cylinder and said piston.

4. A jack apparatus of the class described comprising a frame, a shaft mounted to move vertically in said frame, a beveled gear on said shaft; two pair of gear devices mounted in the frame and geared in connection with each other, one of said gear devices being provided with a beveled gear which meshes with the beveled gear on said shaft and the other gear device being provided with a ratchet wheel, and means for 'rotating said ratchet wheel to raise or lower said shaft through said gear devices and the 'beveled gear on said shaft.

5. A jack apparatus of the class described comprising a frame, a shaft mounted to move vertically in said frame, a beveled gear on said shaft, two pair of gear devices mounted in the frame and geared in connection with each other, one of said gear devices being provided with a beveled gear which mesheswith the beveled gear on said shaft and the other gear device being provided with a ratchet wheel, and means involving a reciprocating piston for rotating said ratchet wheel to raise or lower said shaft through said gear devices and the beveled gear on said sha ft, said piston being pneumatically operated by the motor of a vehicle.

6. A jack apparatus of the class described comprising a frame, a shaft mounted to move vertically in said frame, a beveled gear on said shaft, two gear devices mounted in the frame and geared in connection with each other, one of said gear devices 'being provided with a beveled gear which meshes with the beveled gear on said shaft and the other gear device being provided with a ratchet wheel, means involving a reciprocating piston for rotating said ratchet vwheel to raise or lower said shaft through said gear devices and the beveled gear on said shaft, and means connected with the cylinder of an engine for actuating said reciprocating piston on the compression and firing strokes of the piston within said cylinder.

tit

7. An apparatus of the class described comprising a frame, a shaft vertically movable in said frame, a chain of gears mounted in the frame and in connection with said shaft for giving said shaft its movement, 'a reciprocating member mounted in connection with the frame, means for transmitting the movement of said member to said chain of gears, and means in operative connection with the motor of a vehicle for actuating said member.

8. An apparatus of the class described comprising a frame, a shaft vertically movable in said frame, a chain of gears mounted in the frame and in connection with said shaft for giving said shaft its movement, a reciprocating member mounted in connection with the frame, means for transmitting the movement of said member to said chain of gears, means in operative connection with the motor of a vehicle for actuating said member, and a valve for controlling said last named means.

9. A jack apparatus of the class described v comprising a frame, a shaft movable vertically in said frame, a ported cylindrical member on the frame at one side of said shaft, a tubular piston movably mountedy on and inclosing said member, means for placing said cylindrical member or the port thereof in communication with a cylinder of a motor whereby the suction and compression created in said member in the operation of said motor will reciprocate the piston thereon, means for controlling, said last named means, and means for transmitting the reciprocatory movement of the piston to said shaft to raise or lower the same.

l0. A jack apparatus of the class describedcomprising a frame, a shaft movable vertically in said frame, a ported cylindrical' member on the frame at one side of said shaft, a tubular piston movably mounted on and inclosing said member, means for placing said cylindricai member or the port thereof in communication with a cylinder of a motor whereby the suction and compression created in said member in the operation of said motor will reciprocate the piston thereon, means for controlling said last named means, means for transmitting `the reciprocatory movement of the piston to said shaft to raise or lower the same, and a spring for aiding in the movement of the piston in one direction.

ln testimony that l claim the foregoing as my invention l have signed my name in presence of the subscribing witnesses this 28th day of November, i919.

LOUlS MARINSKY. Witnesses:

C. E. MULREANY, H. E. TrioinrsoN. 

